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REFRIGERANT RECOVERY/EVACUATION SYSTEM from TM
ADVANCED TEST PRODUCTS, INC. Miramar, FL
Telephone: (954) 499-5400 Fax: (954) 499-5454 Toll Free: (800) 327-5060
www.ProVaxAC.com
USERÕS OPERATING MANUAL
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REFRIGERANT
RECOVERY/EVACUATION
SYSTEM from
US patents: 4,523,897; 5,209,653,
other US and foreign patents pending. TABLE OF CONTENTS
INTRODUCTION
2
IMPORTANT SAFETY INFORMATION and OPERATING GUIDELINES
3-4
CARE AND MAINTENANCE OF YOUR ProVax
TM
5
ADDITIONAL RECOVERY TANK INFORMATION
6
PURGING NON-CONDENSABLE GASES
7
HELPFUL HINTS FOR REFRIGERANT RECOVERY & EVACUATION
8-9
OPERATING YOUR ProVax
TM
10-11
SELF PURGING YOUR ProVax
TM
12
PULLING A VACUUM
12
DIAGRAM FOR REFRIGERANT RECOVERY & EVACUATION
12-13
DIAGRAM FOR "PUSH/PULL" METHOD
13
SET-UP DIAGRAM FOR TANK PRE OR SUB COOLING PROCEDURE
13
OPTIONAL RECOVERY / TANK PRE OR SUB COOLING FOR FIXED
14
HOSE SET-UP
VACUUM PUMP MAINTENANCE / OIL CHANGE
15
ProVax PARTS DIAGRAM/PARTS AND ACCESSORIES LIST
16-17
ProVax WIRING DIAGRAM
18
INSTALLATION OF OPTIONAL 80% TANK CAPACITY SENSING KIT
19
TROUBLESHOOTING YOUR PROVAX
TM
20-21
SPECIFICATIONS
22
WARRANTY INFORMATION 23
ENVIROMENTAL PROTECTION AGENCY (EPA) INSTRUCTIONS
24
EPA REGIONALOFFICES 25
1 2
INTRODUCTION
Congratulations on your purchase of the ProVax refrigeration recovery/evacuation system. Using an innova-
tive new design (patents pending), Promax has created a unique recovery system. The ProVax combines
both a recovery unit and a vacuum pump into one unit, conveniently eliminating the need to carry both to the
job site.
A Robinair Cooltech® 6 CFM vacuum pump, using a two-stage, offset rotary vane design, provides a power-
ful high vacuum capability and assures moisture removal, while its high pumping capacity reduces evacuation
time. US patents: 4,523,897; 5,209,653, other US and foreign patents pending.
The ProVax provides everything you need to recover and evacuate a system, all in one package. 3
IMPORTANT SAFETY & OPERATING
GUIDLINE INFORMATION
PERSONAL SAFETY
SAFETY COMES FIRST! Read all safety, operating
guidelines and instructions before operating your
ProVax
TM
.
CAUTION: ONLY A QUALIFIED TECHNICIAN
SHOULD OPERATE THIS RECOVERY UNIT.
The operator must be familiar with air conditioning
and refrigeration systems, refrigerants and the dan-
gers of pressurized components.
Always think before acting, familiarity breeds
carelessness and carelessness can be harmful to
your health, or worse, result in death.
WARNING: Always wear safety goggles and
protective gloves when working with refrigerants.
Contact with refrigerant may cause injury.
Disconnect hoses with extreme caution! All hoses
may contain liquid refrigerant under pressure.
Read all safety information regarding the safe
handling of refrigerant and refrigerant oil, including the
Material Safety Data Sheet. MSDS sheets can be
obtained from your refrigerant supplier.
Be sure that any room where you are working is thor-
oughly ventilated, especially if a leak is suspected.
Refrigerant vapor is hazardous to your health and can
cause death.
Avoid breathing A/C refrigerant and lubrication
vapor or mist. Exposure may irritate eyes,nose and
throat. If accidental system discharge occurs, ventilate
work area before resuming service.
To reduce the risk of injury, care should be taken when
moving this equipment.
Promax strongly recommends the use of the optional
80% Capacity Shutoff Kit (p/n KT-5002).
When installed and used with a recovery tank that
has an internal float switch, the ProVax will shut
down automatically when the tank is 80% full.
Your ProVax is pre-wired from the factory for this kit.
A scale must be used to avoid overfilling the
storage tank. DO NOT OVERFILL. Tank is full at
80% volume. Tank may explode if filled more
than 80% due to liquid expansion. Table 1 is a
representative sample for R-22 refrigerant:
TANK SIZE MAX NET WEIGHT
30 lb. Tank
24 lbs.
50 lb. Tank
40 lbs.
TABLE 1: Representative Sample, R-22
Note: Promax strongly recommends the use of
the ADS-100 Refrigerant Scale for monitoring
tank capacity.
Your ProVax has two Internal Pressure Shut
Off switches, a standard 400psi and a 550psi
(when the High Pressure [R410A] switch is
engaged). The shut off switches will automatically
reset after the pressure drops below 200 psi.
WARNING: The Internal Pressure Shut Off
Switches do not prevent tank overfill. If your system
shuts off on high pressure and is connected to your
tank, you may have overfilled your tank and created
a very dangerous situation! Take immediate meas-
ures to relieve any high pressure and/or tank overfill.
When recovering large amounts of liquid, use the
"Push/Pull method (see diagram on page 13).
CAUTION: When using the "Push/Pull"
method, once the "Push/Pull" siphon is started, it
can continue and overfill the storage tank even if
the tank is equipped with a "shut off" float sensor.
The siphon can continue even after the machine
is turned off.You must manually close the valves on
the tank and the unit to prevent overfilling of the
recovery tank.
Always operate the unit on a flat level surface.
If the tank pressure exceeds 300 psi, use the tank
cooling procedure to reduce the tank pressure.
(See Pages 13 & 14) 4
IMPORTANT SAFETY & OPERATING
GUIDLINE INFORMATION

CONT-
ELECTRICAL SAFETY
When using an extension cord it should be a 3-wire, 14
AWG minimum and no longer than 25 feet.
WARNING! Whenever you perform any type
of maintenance work on your ProVax, insure
that it is disconnected from the power supply
before you begin.
FIRE SAFETY
WARNING: TO REDUCE THE RISKOF FIRE:
Never operate unit in an explosive environment!
Do not use this equipment in the vicinity of spilled or
open containers of gasoline or any other flammable
liquid.
Use this equipment in locations with mechanical venti-
lation that provides at least four air changes per hour
or locate the equipment at least 18 inches above the
floor.
Never use oxygen when testing for leaks.
Any oil in contact with oxygen under pressure will form
an explosive mixture.
REFRIGERANT SAFETY
ProVax
is approved for use with the following
category III, IV and V refrigerants
(Per ARI 740):
R-12, R-22, R-134A, R-401A, R-401B, R-401C,
R-402A, R-402-B, R-404A, R-406A, R-407A,
R-407-B, R-407C, R-407D, R-408A, R-409A,
R-410A, R-411A, R-411B, R-412A, R-500, R-502,
R-507 and R-509
Always open service and cylinder valves slowly.
This allows rapid control of the flow of gases if
there is any danger. Once it is determined that
there is no danger, the valves can be opened
fully.
Always isolate large amounts of refrigerant and
close off valves after use, so if a leak should
develop anywhere in the system, the refrigerant
will not escape.
Keep all connections to the refrigeration system
thoroughly dry and clean. If moisture enters the
refrigeration system, it is likely to cause consider-
able damage.
WARNING!
Pressurized tank contains liquid refrigerant.
Never overfill storage tanks. Overfilling of the tank
may cause a violent explosion and possible injury
or death. Do not exceed the working pressure of
Recovery Tank cylinder. 5
CARE AND MAINTENANCE OF YOUR ProVax
TM
Use of a filter/dryer at the inlet is mandatory.
A filter/dryer must always be used between the
recovery machine and the inlet hose.We recommend
that a clean filter be used for every service job.
Failure to use a filter will invalidate your warranty.
The use of a filter will greatly reduce the risk of
damage to your ProVax, by preventing
foreign material from entering the unit.
Each filter should be labeled and used exclusively
for one type of refrigerant only.
Special care should be taken when recovering
from a "burned-out" system. Use two high acid
capacity filters, in series. (Alco type EK-162-F or
Sporlan type C-162-F are recommended )When
you have finished recovering from the system,
flush your ProVax with a small amount of clean
refrigerant and refrigerant oil to purge off any
foreign substances left in the unit.
Do not expose Vacuum Pump to pressure. It is
protected by a pressure cut-off switch set at 25 psi
(+/- 5).
Maximum vacuum level 13 in. Hg while in Recovery
mode. The compressor is protected by a low pres-
sure cut-out switch set at 13 in. Hg (+/- 3). Use
Vacuum mode to fully evacuate system.
Always empty refrigerant from the ProVax into a
storage tank; see Self-Purge procedure on Page 12.
Liquid refrigerant left in the ProVaxs condenser may
expand, causing damage to components.
If the unit is to be stored or not used for any length
of ti